Our line of 6-color, heavy-duty, institutional-quality beach balls are great for the pool, volleyball, toss games and add fun to just about any physical activity. Because these balls are about 25% thicker than most beach balls, they'll stand up to daily institutional use. Balls are made from phthalate-free vinyl. NOTE: Ball dimensions listed are the diameters of the balls as measured across the width of a deflated ball. The inflated diameter of a ball will be about 65% of the deflated size that is listed. For example, a 24" "deflated" ball, will have an inflated diameter of about 16". This flat diameter is the industry standard for how beach balls are described and measured.